NEC NEAX 2000 IPS - Manual (Page 13)

Chapter 1 Introduction NEAX 2000 Internet Protocol Server (IPS)
NEAX 2000 IPS Configuration Guide
NDA-24347, Issue 1
Page 3
NEAX 2000 IPS
Highlights NEAX 2000 IPS highlights are as follows:
• Hybrid System of IP (Peer-to-Peer connection) and TDM Switching
The NEAX 2000 IPS supports both pure IP switching (Peer-to-Peer connections)
and Time Division switching. The pure IP switching is provided for
communications between Dterm IP telephones and for CCIS network with
another NEAX 2000 IPS/2400 IPX (CCIS over IP). On the other hand, the TDM
switching is provided for communications between Legacy stations/trunks.
Connections between Dterm IP/CCIS over IP and Legacy stations/trunks are
made via IP PADs, which converts packet-based voice data to TDM-based voice
data, and vice versa.
Figure 1-3 Hybrid System of IP and Time Division Switching
Note 1:
CCIS over IP using Peer-to-Peer connections is available with the NEAX
2000 IPS and NEAX 2400 IPX only.
Note 2:
IP PAD: IP Packet Assembly Disassembly
Note 3:
DRS: Device Registration Server
TSW
MP
LAN
IP Network
IP PAD
Router
Peer-to-Peer
Connection
(Dterm IP)
LT/TRK
AP
Time Division
Switching
IP Switching IP/TSW Conversion
Linked with CCIS over IP
Dterm IP
Dterm IP
Call Control
Speech Path
with TSW
NEAX 2000 IPS
NEAX 2000 IPS/
NEAX 2400 IPX
Built-in DRS
Peer-to-Peer
Connection
(CCIS)
Note 3
Note 2
Note 1